It's just how the timing landed this time, but in general Commander gets to operate on its own schedule
If you answered Scrubland (I sure wouldnt have guessed that one), then youd be correct
Just like in the TCG, Mega Evolution ex Pokmon are stronger monsters with bigger HP totals and more powerful attacks, and your opponent gets three prizes if they can take them down
Weakness: None Resistance: None Retreat: 1 Latios Dragon HP130 Basic Pokemon Ability: Luster Assist (Once during your turn, when your Mega Latias ex moves from the Bench to the Active Spot, you may move any number of Energy from your Benched Pokmon to that Active Pokmon.) Attack: [W][P][C] Dragon Claw (130 damage.) Weakness: None Resistance: None Retreat: 1 Trainer Cards Mega Signal Trainer (Item) Effect: Search your deck for 1 Mega Evolution Pokmon ex, reveal it, and put it into your hand
It can be only acquired through Card Pop, and is extremely rare and powerful